Disputed border area claimed by two nations is

Nagorno Karabakh is a mountainous region disputed between Armenia and Azerbaijan. It has been the cause of wars and conflicts for decades. While Azerbaijan claims it as its territory many of its residents are ethnic Armenians who demand independence or unification with Armenia. The dispute led to armed conflicts including the 2020 war. International community has tried mediation but peace is fragile. Nagorno Karabakh remains one of the most complex territorial conflicts in modern history.